Question

1) A contractor estimates that 5 persons could plumb Ravi’s house in 8 days. If he uses 6 persons instead of 5, how long should they take to complete the job​

Answer 1

Answer is in the attachment.

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Answer 2

Answer:

The given example is of inverse proportionality

                          I     II

No. of persons  3       4

No. of days        4       x

By inverse proportionality,

3×4=4×x

x=3  days

Step-by-step explanation:

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